Demand varies widely in the office, making staffing difficult

One of the biggest barriers to standardization is fluctuating short-term demand. Long term changes in demand can be managed by hiring staff or by attrition, but when there is significant variation day to day or even hour to hour, it just isn’t practical to hire new people for the handful of hours when workload exceeds demand. Conversely, it is inefficient and expensive to pay people when there is not enough work.